INNER CODE UNIT · Rust

source

graphql-rust/graphql-client · graphql_client_codegen/src/lib.rs:191

    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
        match self {
            ReadFileError::FileNotFound { io_error, .. }
            | ReadFileError::ReadError { io_error, .. } => Some(io_error),
        }
    }
}

fn read_file(path: &std::path::Path) -> Result<String, ReadFileError> {
    use std::fs;
    use std::io::prelude::*;

    let mut out = String::new();
    let mut file = fs::File::open(path).map_err(|io_error| ReadFileError::FileNotFound {
        io_error,
        path: path.display().to_string(),
    })?;

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